/**
 * 
 */

	function CookieUtils(){}; 
	
	CookieUtils.prototype.setCookie=function (name,value){ 
	    var Days = 30; 
	    var exp = new Date();   
	    exp.setTime(exp.getTime() + Days*24*60*60*1000); 
	    document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString(); 
	};
	CookieUtils.prototype.getCookie=function (name){ 
	    var arr,reg=new RegExp("(^| )"+name+"=([^;]*)(;|$)");
	 
	    if(arr=document.cookie.match(reg))
	 
	        return unescape(arr[2]); 
	    else 
	        return null; 
	}
	CookieUtils.prototype.delCookie=function (name){ 
	    var exp = new Date();  
	    exp.setTime(exp.getTime() - 1);  
	    var cval=this.getCookie(name);  
	    if(cval!=null) 
	        document.cookie= name + "="+cval+";expires="+exp.toGMTString(); 
	};

